Improvement in breaking the surge on harness or vehicles



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FRANCIS P. HART, OF STRASBURG, PENNSYLVANIA, ASSIGNOR TO HIMSELF ANDSAMUEL KENEAGY, OF SAME PLACE.-

Letters .Patent No. 85,307., dated December 29, 1868.

IMPROVEMENT IN BRE-Amd THE SURQE oN HARNESS on VEHICLES.

The schedule mensa to m these Letter Patent ma mung pm of um um.

lSylvania, have invented a new and improved Mode for Breaking the Surgeon Harness or Vehicles by means of India rubber, applied betweenmetallic or leather bands, to traces or the single-tree of vehicles;.and I do herebydeclare that the followingis a full and exactdescription thereof', reference' being had tothe accompanying drawings,making a part of ,thiespecication, in which- Figure l shows one pair ofmetallic plates A B, the ears a of .A (not bent in) to 'form the opensliding loop l for the narrowed portion 1t of plate B.

Figure Z shows a pair of said plates united.

Figure 3 shows a modilication of the same detached.

Figure' 4 shows a pair of plates, A and B, connected with the leather ortrace T, with .the gum-elastic Gr, between the upper and lower pair ofplates.

Figure 5 illustrates my first arrangement with the gum-elastic Grbetween the leather straps forming the trace.

Figure 6 shows the same device attached to the shaft and single-tree vorwhifde-tree.

The nature of my invention consists in securing a stout strap of Indiarubber to traces or' vehicles, in such a manner as to break the surge,and the e'eet of sudden jolts or jerks so apt to ehafe the horse and'incommode the occupant of the vehicle.

To enable others skilled in the art to make and use my invention, I willmore fully explain the several illustrations.

Two plates of metal, A and B, are connected by headed bolts, on theupper and lower sides ofthe trace T, iig. 4, to the end cut ofi` square,having a stout piece of 'gum-elastic G, of the width and thickness ofthe trace, interposed between the ends of the traces and the upper andlower plates, which plates are also riveted to said gum G, the plate Bsliding in the slot' or keepers w on plate A, thus allowing the gum toyield to the extent of the sliding portion n on plate B. Slots may alsobe made in the plates, for certain purposes, to adapt vthe bolt to theyielding gum. A leather keeper may be putaround the-plates to protectthem.

Fig. 5 illustrates the same principle as first tried, by inserting thegum between the double straps form ingthe,.trace,by bolting orsewing thegum in such a. manner as to yield in slots, (when bolts are used,) asshown..

Fig. 6 lillustrates the mode of forming the plates and gum to the shaftsand whiiiie-tree, instead of aixing the same to each trace for thepurpose of breaking the sudden jar or surge, and in order to prevent thebreakv ing of the traces or single-tree, andto ease the animalsshoulders, and protect it against chaing, as well as to promote the easeand comfort of the passengers -by attaching the gumfsubstantially `inthe manner specified.

I am aware that EfMahon, in h is patent, December 4, 1861, employselasticin combination with brous materials for manufacturing traces; butsuch I do not Claim.

I do -not claim the applicationvof gum-elastic to bridles, saddles, norto the draught or breast-strap on harness, arranged'with elastic thongsand spiral springs,

FRANCIS P. HART.

